The standard UNE 100012:2005 establishes a compulsory measurement of Colony Forming Units (CFU), both before and after cleaning, as well as before and after the disinfection of air ducts.
These measurements are really important, for compliance with the regulations, and to determine when you should undertake cleaning and disinfections.

It allows you to extend and complement your range of air-conditioning cleaning systems, with the tool of microbiological measurement.
Quantitative measurement, both in internal and external environments. The air is sucked through a removable head, with a series of holes of 1 mm in diameter at a rate of 100 liters per minute.
In just 7 minutes! Microorganisms are collected on the surface of a plate, which is extracted, incubated and make a count of grown colonies in the ambience. The count, along with the volume of air sampled, is used to calculate the number of Colony Forming Units (CFU) per cubic meter of air.